Synopsis

Moderate: openvswitch security, bug fix, and enhancement update

Type/Severity

Security Advisory: Moderate

Topic

An update for openvswitch is now available for Fast Datapath for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic.

Security Fix(es):

• openvswitch: Mishandle of group mods in lib/ofp-util.c:parse_group_prop_ntr_selection_method() allows for assertion failure (CVE-2018-17204)
  
• openvswitch: Error during bundle commit in ofproto/ofproto.c:ofproto_rule_insert__() allows for crash (CVE-2018-17205)
  
• openvswitch: Buffer over-read in lib/ofp-actions.c:decode_bundle() (CVE-2018-17206)
  

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• Previously, when the ovs-vswitchd service restarted, an error displayed with many open files. With this update, the number of sockets opened by ovs-vswitchd is decreased. As a result, the described problem no longer occurs. (BZ#1526306)
  
• Previously, when OpenvSwitch service was reloaded, the default flow was not removed and it became part of the final flow table. With this update, the default flow rule is no longer added after a service reload. As a result, the described problem no longer occurs. (BZ#1626096)
  

Enhancement(s):

• With this update, the pmd-rxq-assign configuration has been added to Poll Mode Drivers (PMDs) cores. This allows users to select a round-robin assignment. (BZ#1616001)
  
• With this update the ovs-appctl connection-status command has been introduced to the ovs-appctl utility. The command enables to monitor hypervisor (HV) south bound database (SBDB) connection status. Layered products can now check if the ovn-controller is properly connected to a central node. (BZ#1593804)
  
• With this update, a support for the Dynamic Host Configuration Protocol (DHCP) option 252 has been added to Open Virtual Network (OVN) Native DHCP. (BZ#1641765)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Virtualization Manager 4.2 x86_64
• Red Hat Virtualization 4 x86_64
• Red Hat Virtualization for IBM Power LE 4 ppc64le
• Red Hat Enterprise Linux Fast Datapath 7 x86_64
• Red Hat Enterprise Linux Fast Datapath (for RHEL Server for IBM Power LE) 7 ppc64le

Fixes

• BZ - 1526306 - ovs-vswitchd service hangs with Error too many open files
• BZ - 1580217 - [ovn]ipv6 load balancer for layer4 on logical router doesn't work
• BZ - 1593804 - ovn-controller: report when was the most recent successful communication with central
• BZ - 1609643 - Running/destroying testpmd in guest which enabling vIOMMU can cause host ovs-vswitchd[10869]: segfault
• BZ - 1616001 - [RFE] Add option to OVS 2.9 for legacy RXQ assignment to cores
• BZ - 1618488 - vhost-user backend crash on SET_MEM_TABLE request handling while port enabled
• BZ - 1626096 - systemctl reload openvswitch includes default flow.
• BZ - 1627711 - Backport "net/mlx{4,5}: avoid stripping the glue library" commits
• BZ - 1632522 - CVE-2018-17204 openvswitch: Mishandle of group mods in lib/ofp-util.c:parse_group_prop_ntr_selection_method() allows for assertion failure
• BZ - 1632525 - CVE-2018-17205 openvswitch: Error during bundle commit in ofproto/ofproto.c:ofproto_rule_insert__() allows for crash
• BZ - 1632528 - CVE-2018-17206 openvswitch: Buffer over-read in lib/ofp-actions.c:decode_bundle()
• BZ - 1641765 - [RFE] Support DHCP Option 252 in OVN Native DHCP
• BZ - 1643527 - Link OVS binaries statically

CVEs

• CVE-2018-17204
• CVE-2018-17205
• CVE-2018-17206

References

• https://access.redhat.com/security/updates/classification/#moderate

Red Hat Virtualization Manager 4.2

SRPM
openvswitch-2.9.0-70.el7fdp.1.src.rpm	SHA-256: dafd5c9ecaecf3f0213313d809dbfc852674ac79c6f2ddd2913ac33bd7f7ee0a
x86_64
openvswitch-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 6fc897e6a5bcf86ee83d99768df0b262979234f8b59586053572edd66481c7cf
openvswitch-debuginfo-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 5e82bdc97136c81687a9fd3301173063ea53d3c445d2f9cba47cdced85f68866
openvswitch-devel-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: ca44f0e74ada379313a484887a3f82fd61d81deed52a321b7b0858ac9efbaf5c
openvswitch-ovn-central-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 6daba248a637074f768b7437cf97905c33a87d44c2c245e30b3efcac9fd506a9
openvswitch-ovn-common-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: a000480b2ebd8ab50c0d74e4c3b4e0e53f114b404fa996a290edd192cc9f2204
openvswitch-ovn-host-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 0fa489f9887fb8e080ee196f3d058e40f3199404ecfb4e33520e2a21e4483e19
python-openvswitch-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 23820f00869c92dd8ed2c75ed8fcdb64acbfffb0219a228c6250642f5bef57a6

Red Hat Virtualization 4

SRPM
openvswitch-2.9.0-70.el7fdp.1.src.rpm	SHA-256: dafd5c9ecaecf3f0213313d809dbfc852674ac79c6f2ddd2913ac33bd7f7ee0a
x86_64
openvswitch-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 6fc897e6a5bcf86ee83d99768df0b262979234f8b59586053572edd66481c7cf
openvswitch-debuginfo-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 5e82bdc97136c81687a9fd3301173063ea53d3c445d2f9cba47cdced85f68866
openvswitch-devel-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: ca44f0e74ada379313a484887a3f82fd61d81deed52a321b7b0858ac9efbaf5c
openvswitch-ovn-common-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: a000480b2ebd8ab50c0d74e4c3b4e0e53f114b404fa996a290edd192cc9f2204
openvswitch-ovn-host-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 0fa489f9887fb8e080ee196f3d058e40f3199404ecfb4e33520e2a21e4483e19
python-openvswitch-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 23820f00869c92dd8ed2c75ed8fcdb64acbfffb0219a228c6250642f5bef57a6

Red Hat Virtualization for IBM Power LE 4

SRPM
openvswitch-2.9.0-70.el7fdp.1.src.rpm	SHA-256: dafd5c9ecaecf3f0213313d809dbfc852674ac79c6f2ddd2913ac33bd7f7ee0a
ppc64le
openvswitch-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 72cc891b59a65147e66e9a3307756027698dcc32252d659253f8d25c902809e1
openvswitch-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 72cc891b59a65147e66e9a3307756027698dcc32252d659253f8d25c902809e1
openvswitch-debuginfo-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 7efc09043b7c413a65a30d22f8bd53ba3972b6f80148008b55e244284189af36
openvswitch-debuginfo-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 7efc09043b7c413a65a30d22f8bd53ba3972b6f80148008b55e244284189af36
openvswitch-devel-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: ef3268f918bd3213967c118574ca2328841a1e6285378b9c7d7848fcaaf94979
openvswitch-devel-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: ef3268f918bd3213967c118574ca2328841a1e6285378b9c7d7848fcaaf94979
openvswitch-ovn-common-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: bdb0840f55e2e61e198674c9d13de4f5f71e3ffc33bd040516ee2dd4ed3a00b2
openvswitch-ovn-common-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: bdb0840f55e2e61e198674c9d13de4f5f71e3ffc33bd040516ee2dd4ed3a00b2
openvswitch-ovn-host-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 05ecd4e14a39cf55adf106c7862b7629b4406a9cb318ae3e3e4ab62bdb97a7f4
openvswitch-ovn-host-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 05ecd4e14a39cf55adf106c7862b7629b4406a9cb318ae3e3e4ab62bdb97a7f4
python-openvswitch-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 17a1d08cd00aeec5d2391971c4d4eb497c1284643c5a8fb8a2d9d131d6243d09
python-openvswitch-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 17a1d08cd00aeec5d2391971c4d4eb497c1284643c5a8fb8a2d9d131d6243d09

Red Hat Enterprise Linux Fast Datapath 7

SRPM
openvswitch-2.9.0-70.el7fdp.1.src.rpm	SHA-256: dafd5c9ecaecf3f0213313d809dbfc852674ac79c6f2ddd2913ac33bd7f7ee0a
x86_64
openvswitch-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 6fc897e6a5bcf86ee83d99768df0b262979234f8b59586053572edd66481c7cf
openvswitch-debuginfo-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 5e82bdc97136c81687a9fd3301173063ea53d3c445d2f9cba47cdced85f68866
openvswitch-devel-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: ca44f0e74ada379313a484887a3f82fd61d81deed52a321b7b0858ac9efbaf5c
openvswitch-ovn-central-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 6daba248a637074f768b7437cf97905c33a87d44c2c245e30b3efcac9fd506a9
openvswitch-ovn-common-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: a000480b2ebd8ab50c0d74e4c3b4e0e53f114b404fa996a290edd192cc9f2204
openvswitch-ovn-host-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 0fa489f9887fb8e080ee196f3d058e40f3199404ecfb4e33520e2a21e4483e19
openvswitch-ovn-vtep-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: efbb7552df99c7e31f88f92ec11120053d84e7ab7e3994a71e3a094f6ed998ee
openvswitch-test-2.9.0-70.el7fdp.1.noarch.rpm	SHA-256: 118845612e737b8cdd7be136f094ae8898a01cf6457f791aff4e9a417d0c8f84
python-openvswitch-2.9.0-70.el7fdp.1.x86_64.rpm	SHA-256: 23820f00869c92dd8ed2c75ed8fcdb64acbfffb0219a228c6250642f5bef57a6

Red Hat Enterprise Linux Fast Datapath (for RHEL Server for IBM Power LE) 7

SRPM
openvswitch-2.9.0-70.el7fdp.1.src.rpm	SHA-256: dafd5c9ecaecf3f0213313d809dbfc852674ac79c6f2ddd2913ac33bd7f7ee0a
ppc64le
openvswitch-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 72cc891b59a65147e66e9a3307756027698dcc32252d659253f8d25c902809e1
openvswitch-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 72cc891b59a65147e66e9a3307756027698dcc32252d659253f8d25c902809e1
openvswitch-debuginfo-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 7efc09043b7c413a65a30d22f8bd53ba3972b6f80148008b55e244284189af36
openvswitch-debuginfo-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 7efc09043b7c413a65a30d22f8bd53ba3972b6f80148008b55e244284189af36
openvswitch-devel-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: ef3268f918bd3213967c118574ca2328841a1e6285378b9c7d7848fcaaf94979
openvswitch-devel-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: ef3268f918bd3213967c118574ca2328841a1e6285378b9c7d7848fcaaf94979
openvswitch-ovn-central-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 20566dc0eda1c33c61d442a93ad3fc8b8d4b263e9f2725a8c14b6a164977aac1
openvswitch-ovn-central-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 20566dc0eda1c33c61d442a93ad3fc8b8d4b263e9f2725a8c14b6a164977aac1
openvswitch-ovn-common-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: bdb0840f55e2e61e198674c9d13de4f5f71e3ffc33bd040516ee2dd4ed3a00b2
openvswitch-ovn-common-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: bdb0840f55e2e61e198674c9d13de4f5f71e3ffc33bd040516ee2dd4ed3a00b2
openvswitch-ovn-host-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 05ecd4e14a39cf55adf106c7862b7629b4406a9cb318ae3e3e4ab62bdb97a7f4
openvswitch-ovn-host-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 05ecd4e14a39cf55adf106c7862b7629b4406a9cb318ae3e3e4ab62bdb97a7f4
openvswitch-ovn-vtep-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 7b659a690c59a9a336923b7f34a84d932453a5d38d247b873a205d178301e97b
openvswitch-ovn-vtep-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 7b659a690c59a9a336923b7f34a84d932453a5d38d247b873a205d178301e97b
openvswitch-test-2.9.0-70.el7fdp.1.noarch.rpm	SHA-256: 118845612e737b8cdd7be136f094ae8898a01cf6457f791aff4e9a417d0c8f84
openvswitch-test-2.9.0-70.el7fdp.1.noarch.rpm	SHA-256: 118845612e737b8cdd7be136f094ae8898a01cf6457f791aff4e9a417d0c8f84
python-openvswitch-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 17a1d08cd00aeec5d2391971c4d4eb497c1284643c5a8fb8a2d9d131d6243d09
python-openvswitch-2.9.0-70.el7fdp.1.ppc64le.rpm	SHA-256: 17a1d08cd00aeec5d2391971c4d4eb497c1284643c5a8fb8a2d9d131d6243d09